Hot insulation with zinc rich epoxy alone

• Sep 26, 2019

• #2

moltenmetal

Chemical

Jun 5, 2003

5,504

CA

Epoxies will withstand continuous exposure to 60-80 C, and the addition of Zn won't change that. Yes, you can insulate lines coated with Zn rich epoxy if your service temperature will only be 60-80 C.

 

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• Sep 30, 2019

• Thread starter
• #3

nyfi

Mechanical

Sep 25, 2019

10

QA

Thanks Moltenmetal,
But isn't zinc prone to formation of rusting under insulation when moisture ingress.
I would appreciate your response.

Thanks.

 

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• Sep 30, 2019

• Thread starter
• #4

nyfi

Mechanical

Sep 25, 2019

10

QA

What if temperature is up to 120 degree continous.

 

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• Sep 30, 2019

• #5

moltenmetal

Chemical

Jun 5, 2003

5,504

CA

120 C is marginal for an ordinary epoxy. It will be more protective than no coating, but not as protective as if it were operating cooler.

 

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• Oct 7, 2019

• #6

SJones

Petroleum

Apr 22, 2001

3,943

GB

Consult NACE SP0198 for guidance.

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/in/drstevejones

All answers are personal opinions only and are in no way connected with any employer.

 

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